Originally posted by: jagec
Originally posted by: Bootprint
Originally posted by: GeekDrew
/me makes mental note to never drive in Canada
I would be all for obeying the speed limit if, and only if, the speed limit were determined by engineers that calculated the appropriate maximum speed given the environmental conditions that would probably occur, and NOT elected officials that are acting on the public's behalf. There are several stretches of road nearby that are limited to 45 MPH, but I've talked to the engineer who designed them, and he rated it for 80 MPH. Meanwhile, the county sheriff and state patrol makes a ton of money off of speeding tickets...
And FWIW, I have a radar detector, and I couldn't begin to count the number of times it's helped me. Very, very few patrol vehicles use instant on in my area; the vast majority use constant on.
That 80 mph might be fine when the road is empty and in good shape. But add in some traffic, a small pothole or two and some re-tread from a truck, then you'd be crazy to go that fast.
Ever been in the Chicago area?
I have not-so-fond memories of driving through a construction zone. All the trucks were going 80. Bad pavement. Speed limit: 45. You'd be crazy to go that slow.
Pretty much the biggest risk factor on the road is differential speed...that is, the relative difference in speed between you and all the cars in your immediate vicinity. High differential speeds are dangerous even in perfect conditions, low differential speeds (with enough following distance) is almost as safe as being the only car on the road.
If the roads were designed for 80MPH, you can bet that plenty of drivers are speeding like crazy on them...after all, the roads are smooth and flat and good. And then some drivers aren't speeding. This is dangerous. It would have been safer to rate them at 60MPH or something, and reduce the differential speed without getting near the limits of what the road can handle.
As for 80 MPH being "crazy", there are tons of roads with 70MPH speed limits. And yes, they have traffic, potholes, and retread. All the time.